How do you get to the boss chamber in legend of Zelda ocarina of time?

Once you turn off the big fan in the center of the main room, there is a lever over the door that leads to the place with the floating buildings. Clawshot up to the ivy on the big fan, put your iron boots on and Double Clawshot to the lever above the door. This will turn on the big fan above the door and will make the fans on the bottoms of the floating buildings spin. Go to the place with the floating buildings and Double Clawshot to the nets on them(don't worry, the birds won't attack you). The top of the building across from you, where you are Clawshotting to, is where the boss is. There will be a room in the center of the building where all you have to do is turn on a few fans and Clawshot up. Once you go through the door at the top, one of the pillars on the deck you're on will have a grate. Clawshot to there, then Double Clawshot to the ivy on the pillar opposite to you. Once you climb up the ivy, you will be on the platform that the boss is on!